The CSS !important declaration is something I've seen in CSS code before but never knew what it meant until a few days ago, so I thought I'd write a post looking at !important to show what it does.

CSS rules marked !important take precedence over later rules. Normally in CSS the rules work from top to bottom, so if you assigned a new style to an element further down the style sheet or in a secondary style sheet then the later rule would take precedence. !important ensures that this rule has precedence.